This will be delivered by Maj. Meade, one of Genl. Lincoln's Aids, whom he has sent to Philadelphia. As this Gentleman can give you the fullest information relative to Georgia, I will refer you for it to him, and only request that whatever aid is to come from No. Carolina may be forwarded with the utmost dispatch, so that the necessary operations for compelling the Enemy to evacuate Georgia may be performed before the warm Season is so far advanced as to be injurious to the health of the men employed in this service.